H2
Cavin High Temperature Alarm – Lower Zone

H2 error and lower zone temperature remains high despite compressor running

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Lower evaporator fan failure, Ice blockage on lower evaporator, Door gasket leak near lower section, Refrigerant undercharge affecting lower circuit

How to Fix / Troubleshooting

Safety first: Unplug the unit before internal access.

Steps:

  • Door seal inspection: Pay special attention to the lower portion of the door gasket. Use a thin strip of paper; close the door on it and gently pull. If it slides out easily, the seal is weak in that area.
  • Check airflow: Ensure lower vents are not blocked by bottles or shelves.
  • Inspect lower evaporator: Remove lower shelves and inner rear panel to check for heavy frost or ice blocking the coil and fan. Defrost fully if needed.
  • Fan test: Confirm the lower evaporator fan runs when the compressor is on. Replace if seized or silent.

Repair: Replace a failed lower evaporator fan or damaged door gasket. Persistent H2 with poor cooling despite good airflow suggests a sealed system problem that should be handled by a refrigeration technician.

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Repair Difficulty

Hard 4/5

Required Part

Lower Evaporator Fan Motor or Door Gasket
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